Disk harrow



- (No Model.) 7 2 Sheets-Sheet 1.

H. M. ROSE.

DISK HARROW.

No. 416,346. Patented Dec. 3, 1889.

wt I .Iiu; e711?? (No Model.) 2 Sheets Sheet 2. H. M. ROSE.

DISK HARROW.

No. 416,346. Patented Dec. 3, 1889.

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HENRY M. ROSE, OF WVATERMAN, ILLINOIS.

DISK HARROW.

SPECIFICATION forming part of Letters Patent No. 416,346, dated December 3, 1889. Application filed September 12, 1888- Serial No. 285 ,249. (N0 model.)

To all whom it may concern:

Be it known that I, HENRY M. ROSE, a citizen of the United States, residing at Waterman, in the county of De Kalb and State of Illinois, have invented certain new and useful Improvements in Disk Harrows; and'I do declare the following to be a full, clear, and exbe understood that these improvements are not confined in their application to the machine referred to, but may be used with advantage on various other harrowing and cultivating implements.

The invention relates especially to the devices for scraping the disks and freeing them from the earth which they gather in use, the object being to render the scrapers more efficient and convenient of operation.

The invention also relates to means whereby the inclination of the gangs is effected or prevented and certain of the disks caused to travel on a lower plane than do the others, or upon the same plane.

The invention also relates to certain combinations of parts, hereinafter particularly set forth.

In order to make my invention more clearly understood, I have shown in the accompanying drawings a means for carrying the same into effect.

In said drawings, Figure 1 is a rear view of one gang of a disk harrow embodying my invention. Fig. 2 is a transverse sectional view of the same, showing the scrapers in the position which they occupy when not in use. Fig. 3 is a similar view showing the scrapers in the act of being applied to the disk. Fig. 4: is a perspective view of one of the scrapers detached. Fig. 5 is a longitudinal sectional view illustrating the means for depressing one end of the gang or gangs. Fig. 6 is a sectional detail view on line 6 6 of Fig. 5.

Referring to the drawings, U indicates the transverse plank or beam of the gang-frame, to which are secured the depending hangers V, of any suitable construction. The latter support in their lower ends the gang proper, consisting of disks E. In the present instance these are shown as mounted upon a stationary shaft I, being secured upon tubular shafts F by means of spacing-thimbles G and nuts H. The tubular shafts are mounted and rotate freely upon a stationary shaft 1, which in turn is secured in or to the lower ends of the hangers V. At about the middle of the gang the shaft I passes. through a box J, which is pivotally connected by means of the pin K with the draft-frame.

The scrapers are shown at O, and consist, preferably, of comparatively thin and elastic strips of steel provided with a beveled scraping-edge, as shown. The scrapers are secured to a movable frame or carrier in any suitable manner-for instance, by screws or bolts passing through holes 0 in the horizon- 'tal arm 0 of the scraper-blade. Each scraper is situated upon the concave side of a disk with its operating-edge normally in contact with or in close proximity to its surface. The

movable frame or carrier in the construction illustrated consists of a transverse bar D and a forwardly-extending bar (1'. The scrapers are secured to the transverse bar D, and the movement of the said frame, by which the scrapers are brought into action, is permitted by hinging the bar D to the gang-frame. It will thus be seen that by, oscillating said frame or carrier upon its transverse hinge the scraper-blades may be swept along the concave side of the disk from the position shown in Fig. 2 to that shown in Fig. 3, freeing the entire surface of the disk from any earth which may have accumulated upon it. In effecting this movement of the scrapercarrier the forwardly-extending bar d may be conveniently used as a treadle or foot lever, and to this end it should be situated within convenient reach of the drivers seat. It will be evident, however, that a hand-lever extending upward in the rear of beam U or other device might be employed without de parting from. my invention. The movable scraper-carrier may be pivoted or weighted, so as to return to the position shown in Fig. 2 when the scraping operz'ttion is finished; but I prefer to employ a spring (I to effect such automatic return. It will be seen that as the scraper-blades move along the concavity of the disks from near their centers to their peripheries their operating extremities must also be capable of yielding or moving in lines parallel with the axis of the gang. Such yielding may take place in the bladesof the scrapers, in which case the scraper-carrier need have no transverse movement; but I prefer the construction shown, in which the bar D is so hinged as to be capable of moving for a short distance parallel with the beam U and in the direction in which the scrapers are forced by their movement along the inclined or dished surface of the disks. A spring (1, Fig. 1, presses the scraper-cat rier toward the disks and keeps the scrapers in engagement with their surfaces.

Referring to Figs. 1, 5, and 6, Q is a connecting-bar situated centrally of the machine and substantially in. line with the tongue. It is provided at the rear end with a pintle R, which engages eyes 1 upon the inner ends of the gang-frames. The forward end of the bar Q is secured to a hand-lever O, which latter is mounted upon the tongue A and adapted to be secured in any desired position by means of a latch and a segment-rack 0. By this hand-lever and connecting-bar the inclination of the gangs relative to the line of advance is controlled and made greater or less, as may be desired, in a well-known manner. It is very desirable, however, for the operator to be able to control, also, the height of the inner ends of the gangs relative to the outer ends, and I have "provided for conveniently effecting such adjustment. The adjustment means consists of a pressure device T, adapted to bear upon and to force down the connecting-bar Q at a point between its forward support and the pintle R. Said pressure device T consists of a lever or screw-rod, the upper end of which extends within convenient reach of the driver. \Vhen a screw-rod is employed, I provide the same with a handwheel T. Secured upon some convenient fixed portion of the framesucl1 as the crossbar Bis a corresponding screw-threaded eye I. \Vhen the wheel T is turned in the proper direction, the screw-rod will be caused to pass through and below its engaging-eye P and bear upon the connecting-rod Q, with the result, of pressing downward the eyes 1) and the inner ends of the gangs. \Vhen the pressure device consists of a lever, the oscillation of the latter will cause a portion of it or a part connected with it to bear upon and depress the bar Q, with a result-similar to that already described. Inits vertical movement the connecting-bar Q is governed and held from lateral movement by a guide or guides Q,which are formed in one piece with the eye 1) and are bolted therewith to the cross-beznn B.

It will be seen that by the pressure device above described the constant tendency of the inner ends of the gangs to rise up clear or nearly clear of the surface of the ground may be entirely and at the same time 0011- veniently counteracted and all the disks of the gangs caused to travel at a uniform depth and to operate equally upon the soil.

Having thus described my invention, what I claim is- 1. The combination, with the disks E, of the scrapers carried by a pivoted movable frame and movable by the oscillation of said frame along said disks toward and from the periphery, substantially as set forth.

2. The combination, with the disks E, of the scrapers, and the bar D, carrying said scrapers and mounted upon a transverse hinge substantially parallel with the axis of the disks, as set forth.

8. The combination, with the disks E, of the scrapers carried by a transverse frame and movable along the surface of the disks toward and from the periphery, and a spring operating to press said frame laterally toward the disks, substantially as set forth.

4. The combination, with the disks E, of the scrapers, a pivoted scraper-carrier adapted to be oscillated and sweep the scrapers along the surface of the disks, and a controllingspring for normally holding the scrapers at or near the centers of the disks, substantially as set forth.

5. The combination, with the disk-gangs and the connecting-bar by which their inclinations relative to the line of advance are controlled, of a pressure device for engaging and forcing down said bar and adapted to control its vertical position and that of the inner ends of the gangs, substantially as set forth.

6. The combination, with a disk or series of disks E, of a scraper carrier or support, and a scraper or series of scrapers whose free or scraping end when at rest is at or near the center of said disks, and which free end is adapted to be moved over and scrape the surface of the disks on a line crosswise to or at an angle with said scraper, substantially as set forth.

7. The combination, with a disk or series of disks E, of a scraper carrier or support, and a scraper or series of scrapers whose free or scraping end is adapted to be presented to and scrape the disks on a line crosswise to or at an angle with said scrapers, substantially as set forth.

8. The combination, witha disk or series of disks E, of ascraper carrier or support, and a scraper or series of scrapers placed in such position that the line formed by the free end of the scrapers when scraping the disks is crosswise to or at an angle to the scrapers when at rest, substantially asset forth.

9., The combination, with a disk or series of disks E, of a scraper carrier or support, and a scraper or series of scrapers, said scrapers being presented to the disks at an angle with their face, the line on which the free ends of said scrapers move being crosswise to or at an angle with the scrapers, substantially as set forth. ro

In testimonywhereof I aflix my signature in the presence of two witnesses.

HENRY M. ROSE. Witnesses:

GEO. L. RosE, H. N. LoW. 

